20111312

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3119}}^1$

素因数の和:3171

約数の個数: 40

約数和(自身を含む): 43330560

約数和(自身を除く): 23219248

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3119, 3224, 6238, 6448, 12476, 24952, 40547, 49904, 81094, 96689, 162188, 193378, 324376, 386756, 648752, 773512, 1256957, 1547024, 2513914, 5027828, 10055656, 20111312]

約数ペア:

[(1, 20111312), (2, 10055656), (4, 5027828), (8, 2513914), (13, 1547024), (16, 1256957), (26, 773512), (31, 648752), (52, 386756), (62, 324376), (104, 193378), (124, 162188), (208, 96689), (248, 81094), (403, 49904), (496, 40547), (806, 24952), (1612, 12476), (3119, 6448), (3224, 6238)]